A spectrum combining device and method for blue light composite laser

Abstract

The present invention discloses a spectral beam combining device and method for a blue light composite laser, belonging to the field of laser beam processing technology, including a housing, a blue light laser transmitter, a main housing and a beam dual-mirror synchronous switching mechanism; wherein the beam dual-mirror synchronous switching mechanism includes a slide frame, a reduction motor, a screw and a sleeve strip, and also includes a beam reflector tilt switching mechanism, a sealing sleeve block and a multi-point detection component. The present invention has the ability to remotely know the damage of the main beam combining mirror and the main focusing mirror through the beam dual-mirror synchronous switching mechanism, and automatically replace the damaged main beam combining mirror and the main focusing mirror, so that the downtime of laser beam processing is greatly shortened, and the normal use of the beam combining device can be quickly restored, and the use of laser beam processing can be quickly restored, thereby solving the problem that the beam combining device has a long waiting time for maintenance, which leads to a long downtime for laser beam processing maintenance and it is difficult to quickly restore the normal use of the beam combining device.

Description

Technical Field

[0001] The present invention relates to the technical field of laser beam processing, and in particular to a spectral beam combining device and method for a blue light composite laser. Background Art

[0002] The spectrum combining device of the blue-red composite laser mainly uses precise optical elements such as beam combining mirrors and prisms to ensure that the blue light and the red light can be accurately superimposed in the beam cutting process. The blue-red composite laser uses the spectrum combining technology to superimpose the two wavelengths of laser light to form a composite beam with high energy density. When cutting materials, this beam can reach the melting point or vaporization point of the material faster, thereby significantly improving the cutting efficiency, making it more convenient to use laser beams for cutting.

[0003] In the existing published technical literature, the utility model patent with Chinese patent announcement number CN221582339U discloses a red-blue composite laser head, in which the beam combining device is mainly provided with a galvanometer scanning unit through the light outlet of the fixed lens, and the Z lens and the galvanometer scanning unit are connected with a driving module; the infrared laser and the blue laser are combined by the beam combining mirror, and the driving module adjusts the distance of the Z lens, changes the focal length, and adjusts the size of the focused light spot, and the centers of the red and blue focused light spots are made to coincide by the beam combining mirror, without the need for aberration correction; the driving module controls the movement of the galvanometer scanning unit, so that the galvanometer scanning unit can correspond to the amplitude of workpieces of different sizes. However, the following problems still exist when this technology is used.

[0004] When the laser beam combining device processes the blue light and red light beams, the composite laser beam contacts the workpiece and can process and cut the workpiece. The composite process mainly uses the cooperation of the reflector, focusing mirror and beam combining mirror. During the use of the composite laser beam, the lens will be irradiated by the high-intensity laser beam. Long-term use will cause thermal stress on the lens surface, which will cause the lens to deform or produce thermal cracks. Therefore, it is necessary to wait for maintenance personnel to arrive at the site to disassemble and repair the beam combining device. The relatively damaged lens can be replaced only after it is confirmed to be stable. In this way, the beam combining device has a long waiting time for maintenance, which leads to a long shutdown time for laser beam processing and maintenance, and it is difficult to quickly restore the normal use of the beam combining device. For this reason, a spectral beam combining device and method for a blue light composite laser are needed. Summary of the invention

[0005] To this end, the present invention provides a spectral beam combining device and method for a blue light composite laser, which has solved the problems existing in the prior art.

[0006] In order to achieve the above-mentioned purpose, the present invention provides the following technical solutions: a spectral beam combining device of a blue light composite laser, comprising a shell, a blue light laser transmitter and a main shell, wherein the blue light laser transmitter is fixed inside the shell, the main shell is fixedly installed at the bottom end of the blue light laser transmitter, one side of the main shell is fixedly connected to a side shell, and the other side of the main shell is provided with a beam dual-mirror synchronous switching mechanism; the beam dual-mirror synchronous switching mechanism comprises a sliding frame fixedly arranged on the other side of the main shell, a reduction motor is fixedly installed on one side of the inner wall of the sliding frame, the output end of the reduction motor is fixedly connected to a screw, and the screw The outer wall of the rod is threadedly connected with a sleeve strip; a concave strip is fixedly installed at one end of the sleeve strip, a switching motor is fixedly installed at the top of the concave strip, a switching block is fixedly connected to the output end of the switching motor, and a main sealing strip is fixedly connected to one side of the switching block, a main beam combining mirror is fixedly installed on one side of the main sealing strip, and the switching block and the main sealing strip are both slidably connected to the main shell, and a beam reflector tilt switching mechanism is provided on the inner wall of the side shell; a sealing sleeve block is installed on one side of the inner wall of the main shell and below the main beam combining mirror, and a multi-point position detection component is provided inside the sealing sleeve block.

[0007] Preferably, the sleeve strip is slidably connected to the sliding frame, and the cross-sectional shape of the sleeve strip is L-shaped, the outer wall of the sleeve strip and the inner wall of the sliding frame are both smooth surfaces, the other side of the switching block is fixedly connected to a secondary sealing strip, and one side of the secondary sealing strip is fixedly installed with a secondary beam combining mirror, the bottom end of the concave strip is fixedly installed with a micro motor, and the outer wall of the output end of the micro motor is fixedly connected with a linkage block, one side of the linkage block is fixedly connected with a main sealing block, and the main sealing block is slidably connected to the main shell, and one side of the main sealing block is fixedly installed with a main focusing mirror; the other side of the linkage block is fixedly connected with a secondary sealing block, and one side of the secondary sealing block is fixedly installed with a secondary focusing mirror, the main focusing mirror is slidably connected to the main shell, and the secondary sealing block and the main sealing block are symmetrically arranged about the linkage block.

[0008] When this technology is in use, the reduction motor drives the screw to rotate forward, the sleeve strip drives the concave strip to move right, and the switching block drives the main sealing strip to move right. The main sealing strip drives the main beam combiner to move right out of the main shell. The micro motor drives the linkage block to move right, and the main sealing block drives the main focusing mirror to move right out of the main shell. When the main beam combiner is damaged, the switching motor drives the switching block to rotate 180 degrees, and the secondary sealing strip drives the secondary beam combiner to rotate 180 degrees. When the main focusing mirror is damaged, the wireless controller starts the micro motor to rotate the linkage block 180 degrees, and the secondary sealing block drives the secondary focusing mirror to rotate 180 degrees, so that the positions of the secondary focusing mirror and the main focusing mirror are swapped. The reduction motor reverses the screw, the sleeve strip drives the concave strip to move left, the switching motor drives the switching block to move left, and the switching block drives the secondary sealing strip to insert into the gap inside the main shell. The micro motor drives the linkage block to move left, and the secondary focusing mirror is inserted into the main shell, so that the damaged main beam combiner and main focusing mirror can be automatically replaced.

[0009] Preferably, the beam reflector tilt switching mechanism includes a main reflector slidably arranged on the inner wall of the side shell; the outer wall of the main reflector is fixedly connected with a main sealing plate, the top of the main sealing plate is fixedly connected with a displacement block, the main sealing plate and the main reflector are both slidably connected with the side shell, and a red light laser emitter is fixedly installed on the top of the side shell; the top of the displacement block is fixedly installed with a secondary sealing plate, and the top of the secondary sealing plate is fixedly connected with a secondary reflector, a linkage motor is installed on the inner wall of the displacement block, and the output end of the linkage motor is fixedly connected to the displacement block; one side of the linkage motor is fixedly connected with a support bar, and one side of the support bar is fixedly connected with a linkage electric cylinder, and the linkage electric cylinder is fixedly connected to the side shell. The secondary sealing plate and the main sealing plate are symmetrically arranged with respect to the displacement block, and the outer walls of the main reflector and the secondary reflector are both smooth surfaces.

[0010] When this technology is used, the linkage electric cylinder tilts and pushes the support bar upward, the linkage motor drives the displacement block to tilt upward, the main sealing plate causes the main reflector to tilt upward, and then the wireless controller starts the linkage motor, the displacement block drives the secondary sealing plate to rotate 180 degrees, and the secondary reflector can be swapped with the main reflector. The linkage electric cylinder drives the support bar to tilt downward, the linkage motor causes the displacement block to tilt downward, and the secondary sealing plate drives the secondary reflector to tilt downward, so that the main reflector can be replaced automatically.

[0011] Preferably, the multi-point detection component includes a collection camera fixedly arranged inside the sealing sleeve block; a wireless controller is fixedly connected to the outer wall of the main shell and located above the sealing sleeve block, and a micro-rotating motor is provided on one side of the sealing sleeve block, and the outer wall of the micro-rotating motor is fixedly connected to the sealing sleeve block, a connecting strip is fixedly installed on the outer wall of the micro-rotating motor, and a mobile electric cylinder is fixedly connected to one side of the connecting strip, a support frame is provided on the upper surface of the mobile electric cylinder, the main shell and the mobile electric cylinder are fixedly connected to the support frame, the outer wall of the sealing sleeve block and the interior of the main shell are smooth surfaces, and a plurality of fill lights are fixedly connected to the upper surface of the collection camera.

[0012] When this technology is in use, the mobile electric cylinder pushes the connecting strip to the left, the micro-rotating motor drives the sealing sleeve to move to the left, and the acquisition camera enters the position below the main beam combiner. The fill light illuminates the lower surface of the main beam combiner to check whether the main beam combiner is deformed or cracked. The micro-rotating motor is started to drive the sealing sleeve to rotate 90 degrees clockwise. The acquisition camera continues to check whether there are cracks on the main reflector or deformation problems on the main reflector. Continue to drive the sealing sleeve to rotate 90 degrees clockwise by the micro-rotating motor, and the acquisition camera can check the main focusing mirror to check whether there are cracks or deformation problems on the main focusing mirror.

[0013] A spectral beam combining method for a blue light composite laser, the method comprising the following steps:

[0014] Step 1: During composite laser processing, turn on the red laser emitter and the blue laser emitter, the red light is reflected to the main beam combiner for beam combining, and then focused and cut on the workpiece through the main focusing mirror;

[0015] Step 2: During multi-point detection, the mobile electric cylinder pushes the connecting bar to the left, and the acquisition camera enters the position below the main beam combiner to check whether the main beam combiner, main focusing mirror, and main reflector have deformation or cracks;

[0016] Step 3: When the beam dual mirrors are switched synchronously, the reduction motor drives the screw to rotate forward, the main beam combining mirror moves rightward from the inside of the main shell, the auxiliary beam combining mirror is swapped with the main beam combining mirror, and the auxiliary focusing mirror is swapped with the main focusing mirror;

[0017] Step 4: When the beam reflector is tilted and switched, the linkage electric cylinder tilts and pushes up the support bar, the main reflector can be tilted and moved out from the inside of the side shell, and the auxiliary reflector can be swapped with the main reflector.

[0018] The present invention has the following advantages:

[0019] 1. The present invention uses a beam dual-mirror synchronous switching mechanism. The reduction motor drives the screw to rotate forward. The screw drives the sleeve strip to move right under the action of the thread transmission force. The concave strip causes the switching motor to drive the switching block to move right. The switching block drives the main sealing strip to move right. The main sealing block drives the main focusing mirror to move right out of the main shell. The switching motor drives the switching block to rotate 180 degrees. The position of the secondary beam combining mirror and the main beam combining mirror are swapped. The micro motor is started to rotate the linkage block 180 degrees. After the position of the secondary focusing mirror and the main focusing mirror are swapped, the reduction motor is started to reverse the screw. The secondary beam combining mirror is inserted into the main shell. The secondary focusing mirror is inserted into the main shell. The damage of the main beam combining mirror and the main focusing mirror can be known remotely, so that the damaged main beam combining mirror and the main focusing mirror can be automatically replaced, thereby reducing the maintenance waiting time, greatly shortening the downtime of laser beam processing, and quickly restoring the normal use of the beam combining device;

[0020] 2. The present invention uses a beam reflector tilt switching mechanism. If the main reflector is damaged and needs to be replaced, the wireless controller is used to start the linkage electric cylinder, and the support bar drives the linkage motor to tilt upward. The main reflector can be tilted upward from the inside of the side shell, and the linkage motor drives the displacement block to rotate 180 degrees. The displacement block drives the secondary sealing plate to rotate 180 degrees. The secondary reflector can be swapped with the main reflector. The linkage electric cylinder is started to drive the support bar to tilt downward. The support bar drives the linkage motor to tilt downward. The secondary sealing plate drives the secondary reflector to tilt downward. The damage of the main reflector can be quickly and remotely known, and the damaged main reflector can be automatically replaced, and the laser beam processing and welding can be quickly restored, and the laser beam processing downtime is greatly shortened.

[0021] 3. The present invention adopts a multi-point detection component. The wireless controller starts the mobile electric cylinder. The connecting bar makes the micro-rotating motor move left. The micro-rotating motor drives the sealing sleeve block to move left, so that the fill light illuminates the lower surface of the main beam combining mirror to check whether the main beam combining mirror is deformed or cracked. The micro-rotating motor drives the sealing sleeve block to rotate ninety degrees clockwise to check whether there are cracks on the main reflector or deformation problems of the main reflector. The micro-rotating motor drives the sealing sleeve block to rotate ninety degrees clockwise, and the acquisition camera rotates ninety degrees clockwise to check whether there are cracks or deformations on the main focusing mirror. In this way, the damaged positions of the main beam combining mirror, the main focusing mirror and the main reflector can be known, and the laser beam processing welding can be quickly restored, and the laser beam processing downtime is greatly shortened.

[0022] The interaction of the above multiple functions can first know the damaged position of the main beam combiner, main focusing mirror and main reflector, and then remotely know the damage of the main beam combiner and main focusing mirror, so as to automatically replace the damaged main beam combiner and main focusing mirror, and finally remotely quickly know the damage of the main reflector, so as to realize automatic replacement of the damaged main reflector. In summary, the damaged main beam combiner, main focusing mirror and main reflector can be quickly switched and restored, so that there is no need to wait for maintenance personnel to arrive at the site, which can reduce the maintenance waiting time, greatly shorten the downtime of laser beam processing, and quickly restore the normal use of the beam combiner. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the implementation methods of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for the implementation methods or the description of the prior art. Obviously, the drawings in the following description are only exemplary, and for ordinary technicians in this field, other implementation drawings can be derived from the provided drawings without creative work.

[0024] The structures, proportions, sizes, etc. illustrated in this specification are only used to match the contents disclosed in the specification so as to facilitate understanding and reading by persons familiar with the technology. They are not used to limit the conditions under which the present invention can be implemented, and therefore have no substantial technical significance. Any structural modification, change in proportion or adjustment of size shall still fall within the scope of the technical contents disclosed in the present invention without affecting the effects and purposes that can be achieved by the present invention.

[0025] Figure 1 It is a schematic diagram of the main structure of the spectrum combining device of the blue light composite laser of the present invention;

[0026] Figure 2 It is a schematic diagram of the partial structure of the housing and the blue laser emitter of the present invention;

[0027] Figure 3 It is a schematic diagram of a partial structure of the connection between the main housing and the sliding frame of the present invention;

[0028] Figure 4 It is a schematic diagram of the partial structure of the main sealing strip and the main beam combiner at the connection of the present invention;

[0029] Figure 5 This is a schematic diagram of the partial structure of the main sealing block and the main focusing lens connected to each other in the present invention;

[0030] Figure 6 It is a schematic diagram of the partial structure of the vertical section of the main shell of the present invention;

[0031] Figure 7 It is a schematic diagram of a partial structure of a vertical section of the connection between the main sealing plate and the main reflector of the present invention;

[0032] Figure 8 This is a schematic diagram of the partial structure of the main shell of the present invention from the rear view;

[0033] Fig. 9 It is a schematic diagram of a partial structure of the connection between the support frame and the main shell of the present invention;

[0034] Fig.10 This is a schematic diagram of the main structure of the multi-point detection component of the present invention;

[0035] In the figure: 1, housing; 2, blue laser transmitter; 3, main housing; 4, side housing; 5, sliding frame; 6, screw; 7, reduction motor; 8, sleeve strip; 9, concave strip; 10, switching motor; 11, switching block; 12, main sealing strip; 13, main beam combiner; 14, secondary sealing strip; 15, secondary beam combiner; 16, micro motor; 17, linkage block; 18, main sealing block; 19, main focusing mirror; 20, secondary sealing block; 2 1. Secondary focusing mirror; 22. Main reflector; 23. Red laser emitter; 24. Main sealing plate; 25. Displacement block; 26. Secondary sealing plate; 27. Secondary reflector; 28. Linkage motor; 29. ​​Support bar; 30. Linkage electric cylinder; 31. Sealing sleeve block; 32. Wireless controller; 33. Collection camera; 34. Micro rotating motor; 35. Connecting bar; 36. Mobile electric cylinder; 37. Support frame; 38. Fill light. DETAILED DESCRIPTION

[0036] The following is a description of the implementation of the present invention by specific embodiments. People familiar with the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0037] As attached Figure 1 -Attached Fig.10 A spectral beam combining device of a blue light composite laser is shown, and the spectral beam combining device of the blue light composite laser is provided with a beam dual-mirror synchronous switching mechanism, a beam reflector tilt switching mechanism, and a multi-point detection component. The settings of each mechanism and component can quickly switch and restore the damaged main beam combining mirror 13, main focusing mirror 19 and main reflector 22. In this way, there is no need to wait for maintenance personnel to arrive at the site for disassembly and maintenance, which can reduce the maintenance waiting time, greatly shorten the laser beam processing downtime, and can quickly restore the normal use of the beam combining device. The specific structural settings of each mechanism and component are as follows.

[0038] In this technical solution, as shown in the attached Figure 1 -Attached Figure 4As shown, a beam dual-mirror synchronous switching mechanism is provided on the other side of the main shell 3; the beam dual-mirror synchronous switching mechanism includes a slide frame 5 fixedly arranged on the other side of the main shell 3, a reduction motor 7 is fixedly installed on one side of the inner wall of the slide frame 5, a screw 6 is fixedly connected to the output end of the reduction motor 7, and a sleeve strip 8 is threadedly connected to the outer wall of the screw 6. A concave strip 9 is fixedly installed on one end of the sleeve strip 8, a switching motor 10 is fixedly installed on the top of the concave strip 9, a switching block 11 is fixedly connected to the output end of the switching motor 10, and a main sealing strip 12 is fixedly connected to one side of the switching block 11, a main beam combining mirror 13 is fixedly installed on one side of the main sealing strip 12, and the switching block 11 and the main sealing strip 12 are both slidably connected to the main shell 3; a beam reflector tilt switching mechanism is provided on the inner wall of the side shell 4; a sealing sleeve block 31 is installed on one side of the inner wall of the main shell 3 and below the main beam combining mirror 13, and a multi-point position detection component is provided inside the sealing sleeve block 31.

[0039] In this technical solution, as shown in the attached Figure 4 -Attached Figure 5 As shown, a secondary sealing strip 14 is fixedly connected to the other side of the switching block 11, and a secondary beam combining mirror 15 is fixedly installed on one side of the secondary sealing strip 14, so that the switching block 11 drives the secondary sealing strip 14 to rotate one hundred and eighty degrees, and the secondary sealing strip 14 drives the secondary beam combining mirror 15 to rotate one hundred and eighty degrees, so that the secondary sealing strip 14 and the secondary beam combining mirror 15 can be switched and used interchangeably.

[0040] A micro motor 16 is fixedly installed at the bottom end of the concave strip 9, and a linkage block 17 is fixedly connected to the outer wall of the output end of the micro motor 16, a main sealing block 18 is fixedly connected to one side of the linkage block 17, and the main sealing block 18 is slidably connected to the main shell 3, and a main focusing mirror 19 is fixedly installed on one side of the main sealing block 18; a secondary sealing block 20 is fixedly connected to the other side of the linkage block 17, and a secondary focusing mirror 21 is fixedly installed on one side of the secondary sealing block 20, and the main focusing mirror 19 is slidably connected to the main shell 3, and the secondary sealing block 20 and the main sealing block 18 are about the linkage block 17. The symmetrical arrangement facilitates the concave strip 9 to drive the micro motor 16 to move right, the micro motor 16 drives the linkage block 17 to move right, the linkage block 17 causes the main sealing block 18 to move right, the main sealing block 18 drives the main focusing mirror 19 to move right out of the main shell 3, and then the micro motor 16 is started by the wireless controller 32 to rotate the linkage block 17 180 degrees, the linkage block 17 drives the secondary sealing block 20 to rotate 180 degrees, the secondary sealing block 20 drives the secondary focusing mirror 21 to rotate 180 degrees, and thus the positions of the secondary focusing mirror 21 and the main focusing mirror 19 are swapped.

[0041] In this technical solution, as shown in the attached Figure 6 -Attached Figure 8As shown, the beam reflector tilt switching mechanism includes a main reflector 22 slidably set on the inner wall of the side shell 4; the outer wall of the main reflector 22 is fixedly connected to a main sealing plate 24, and the top of the main sealing plate 24 is fixedly connected to a displacement block 25, the main sealing plate 24 and the main reflector 22 are both slidably connected to the side shell 4, and the top of the side shell 4 is fixedly installed with a red light laser emitter 23.

[0042] A secondary sealing plate 26 is fixedly installed on the top of the displacement block 25, and a secondary reflector 27 is fixedly connected to the top of the secondary sealing plate 26. A linkage motor 28 is installed on the inner wall of the displacement block 25, and the output end of the linkage motor 28 is fixedly connected to the displacement block 25; a support bar 29 is fixedly connected to one side of the linkage motor 28, and a linkage electric cylinder 30 is fixedly connected to one side of the support bar 29, and the linkage electric cylinder 30 is fixedly connected to the side shell 4. The secondary sealing plate 26 and the main sealing plate 24 are symmetrically arranged about the displacement block 25, and the outer walls of the main reflector 22 and the secondary reflector 27 are both smooth surfaces.

[0043] In this technical solution, as shown in the attached Fig. 9 -Attached Fig.10 As shown, the multi-point detection component includes a collection camera 33 fixedly arranged inside the sealing sleeve block 31; a wireless controller 32 is fixedly connected to the outer wall of the main shell 3 and located above the sealing sleeve block 31, and a micro-rotating motor 34 is provided on one side of the sealing sleeve block 31, and the outer wall of the micro-rotating motor 34 is fixedly connected to the sealing sleeve block 31, and a connecting strip 35 is fixedly installed on the outer wall of the micro-rotating motor 34, and a mobile electric cylinder 36 is fixedly connected to one side of the connecting strip 35, and a support frame 37 is provided on the upper surface of the mobile electric cylinder 36, and the main shell 3 and the mobile electric cylinder 36 are fixedly connected to the support frame 37. The outer wall of the sealing sleeve block 31 and the interior of the main shell 3 are both smooth surfaces, and a plurality of fill lights 38 are fixedly connected to the upper surface of the collection camera 33.

[0044] The use process of the spectrum combining device of the blue light composite laser of the present invention is as follows:

[0045] Step 1: During the composite laser spectrum beam combining process, the top of the housing 1 is fixed to the mechanical arm of the cutting equipment with bolts, and the housing 1 can provide protection for the outside of the blue laser emitter 2 and the red laser emitter 23. Turn on the blue laser emitter 2 through the wireless controller 32. At the same time, turn on the red laser emitter 23, and the blue laser beam generated by the blue laser emitter 2 is combined along the main beam combining mirror 13. At the same time, the red laser beam generated by the red laser emitter 23 is reflected to the main beam combining mirror 13 through the main reflector 22, and the blue laser beam and the red laser beam are combined through the main beam combining mirror 13, and then focused and cut on the workpiece through the main focusing mirror 19, so as to use the composite beam for laser cutting process.

[0046] Step 2: During multi-point detection, when the main reflector 22, the main beam combiner 13 and the main focusing mirror 19 need to be replaced, the blue laser emitter 2 and the red laser emitter 23 are turned off. The mobile electric cylinder 36 is started by the wireless controller 32, and the main shell 3 provides support force to the support frame 37, and the support frame 37 provides support force to the mobile electric cylinder 36. The mobile electric cylinder 36 pushes the connecting bar 35 to move left, and the connecting bar 35 makes the micro-rotating motor 34 move left, and the micro-rotating motor 34 drives the sealing sleeve block 31 to move left, and the sealing sleeve block 31 drives the collection camera 33 to move left, and the collection camera 33 enters the position below the main beam combiner 13.

[0047] Then, by turning on multiple fill-in lights 38, the fill-in lights 38 can illuminate the lower surface of the main beam combiner 13 to check whether the main beam combiner 13 is deformed or cracked, and the micro-rotating motor 34 is started to drive the sealing sleeve block 31 to rotate ninety degrees clockwise, and the sealing sleeve block 31 drives the acquisition camera 33 to rotate ninety degrees clockwise, so that the acquisition camera 33 continues to check whether there are cracks on the main reflector 22 or deformation problems on the main reflector 22. Then, the sealing sleeve block 31 is driven by the micro-rotating motor 34 to rotate ninety degrees clockwise, and the sealing sleeve block 31 drives the acquisition camera 33 to rotate ninety degrees clockwise, so that the acquisition camera 33 can check the main focusing mirror 19 to check whether there are cracks or deformation problems on the main focusing mirror 19. In this way, the wireless controller 32 can be remotely transmitted to the backstage maintenance master's operation screen. When the main focusing mirror 19 and the main beam combiner 13 are damaged and need to be replaced, the reduction motor 7 is started by the wireless controller 32.

[0048] Step 3: When the beam dual mirrors are switched synchronously, the reduction motor 7 drives the screw 6 to rotate forward, and the screw 6 drives the sleeve strip 8 to move right under the action of the thread transmission force, and the sleeve strip 8 drives the concave strip 9 to move right, and the concave strip 9 makes the switching motor 10 drive the switching block 11 to move right, and the switching block 11 drives the main sealing strip 12 to move right. The main sealing strip 12 drives the main beam combining mirror 13 to move right out of the main shell 3. At the same time, the concave strip 9 drives the micro motor 16 to move right, and the micro motor 16 drives the linkage block 17 to move right, and the linkage block 17 makes the main sealing block 18 move right, and the main sealing block 18 drives the main focusing mirror 19 to move right out of the main shell 3. When the main beam combining mirror 13 is damaged, the switching motor 10 drives the switching block 11 to rotate 180 degrees, and the switching block 11 drives the secondary sealing strip 14 to rotate 180 degrees, and the secondary sealing strip 14 drives the secondary beam combining mirror 15 to rotate 180 degrees, so that the position of the secondary beam combining mirror 15 and the main beam combining mirror 13 is swapped.

[0049] When the main focusing mirror 19 is damaged, the micro motor 16 is started by the wireless controller 32 to rotate the linkage block 17 180 degrees, the linkage block 17 drives the secondary sealing block 20 to rotate 180 degrees, and the secondary sealing block 20 drives the secondary focusing mirror 21 to rotate 180 degrees, so that the positions of the secondary focusing mirror 21 and the main focusing mirror 19 are swapped.

[0050] The wireless controller 32 is used to start the reduction motor 7 to reverse the screw 6. The screw 6 drives the sleeve strip 8 to move left under the action of the thread. The sleeve strip 8 drives the concave strip 9 to move left. The concave strip 9 drives the switching motor 10 to move left. The switching motor 10 makes the switching block 11 move left. The switching block 11 drives the secondary sealing strip 14 to insert into the gap inside the main shell 3. At the same time, the secondary sealing strip 14 drives the secondary beam combining mirror 15 to insert into the main shell 3. At the same time, the concave strip 9 drives the micro motor 16 to move left. The micro motor 16 drives the linkage block 17 to move left. The linkage block 17 drives the secondary sealing block 20 to move left. The secondary sealing block 20 makes the secondary focusing mirror 21 move left. The secondary focusing mirror 21 is inserted into the main shell 3. Then the wireless controller 32 turns off the reduction motor 7. In this way, the damaged main beam combining mirror 13 and the main focusing mirror 19 can be automatically replaced, thereby reducing the waiting time for maintenance, greatly shortening the downtime of laser beam processing, and quickly restoring the normal use of the beam combining device.

[0051] Step 4: When the beam reflector is tilted and switched, if the main reflector 22 is damaged and needs to be replaced, the linkage electric cylinder 30 is started by the wireless controller 32, and the linkage electric cylinder 30 tilts and pushes the support bar 29 upward, and the support bar 29 drives the linkage motor 28 to tilt upward, and the linkage motor 28 drives the displacement block 25 to tilt upward, and the displacement block 25 drives the main sealing plate 24 to tilt upward, and the main sealing plate 24 makes the main reflector 22 tilt upward, and the main reflector 22 can tilt upward out of the side shell 4. Then the wireless controller 32 starts the linkage motor 28, and the linkage motor 28 drives the displacement block 25 to rotate 180 degrees, and the displacement block 25 drives the secondary sealing plate 26 to rotate 180 degrees, and the secondary sealing plate 26 drives the secondary reflector 27 to rotate 180 degrees, so that the secondary reflector 27 can be swapped with the main reflector 22.

[0052] Then, after closing the linkage motor 28, start the linkage electric cylinder 30 to drive the support bar 29 to tilt downward, the support bar 29 drives the linkage motor 28 to tilt downward, the linkage motor 28 causes the displacement block 25 to tilt downward, the displacement block 25 drives the secondary sealing plate 26 to tilt downward, the secondary sealing plate 26 drives the secondary reflector 27 to tilt downward, so that the secondary reflector 27 can be inserted into the side shell 4, so that the main reflector 22 can be automatically replaced and the laser beam processing and welding can be quickly restored.

[0053] The contents not described in detail in the specification belong to the prior art known to those skilled in the art, and the model parameters of each electrical appliance are not specifically limited, and conventional equipment can be used. In this technical solution, the electrical control components not mentioned are not shown in the figure because they belong to the prior art and will not be described here.

[0054] The present invention has been described in detail above by general description and specific embodiments, but it is obvious to those skilled in the art that some modifications or improvements can be made on the basis of the present invention. Therefore, these modifications or improvements made on the basis of not departing from the spirit of the present invention all belong to the scope of protection claimed by the present invention.

Claims

1. A spectral beam combining device for a blue light composite laser, comprising a housing, a blue light laser transmitter and a main housing, wherein the blue light laser transmitter is fixed inside the housing, the main housing is fixedly mounted at the bottom of the blue light laser transmitter, and one side of the main housing is fixedly connected to a side housing, characterized in that: The other side of the main shell is provided with a beam dual-mirror synchronous switching mechanism; The beam dual-mirror synchronous switching mechanism includes a sliding frame fixedly arranged on the other side of the main shell, a reduction motor is fixedly installed on one side of the inner wall of the sliding frame, the output end of the reduction motor is fixedly connected with a screw, and the outer wall of the screw is threadedly connected with a sleeve strip; one end of the sleeve strip is fixedly installed with a concave strip, and the top of the concave strip is fixedly installed with a switching motor, the output end of the switching motor is fixedly connected with a switching block, and one side of the switching block is fixedly connected with a main sealing strip, one side of the main sealing strip is fixedly installed with a main beam combining mirror, and the switching block and the main sealing strip are both slidably connected to the main shell; the inner wall of the side shell is provided with a beam reflector tilt switching mechanism, and the beam reflector tilt switching mechanism includes a main reflector slidably arranged on the inner wall of the side shell; the outer wall of the main reflector is fixedly connected with a main sealing plate, and the top of the main sealing plate is fixedly connected with a displacement block, the main sealing plate and the main reflector are both slidably connected to the side shell, and the top of the side shell is fixedly installed with a red light Laser emitter; a secondary sealing plate is fixedly installed on the top of the displacement block, and a secondary reflecting mirror is fixedly connected to the top of the secondary sealing plate, a linkage motor is installed on the inner wall of the displacement block, and the output end of the linkage motor is fixedly connected to the displacement block; a support bar is fixedly connected to one side of the linkage motor, and a linkage electric cylinder is fixedly connected to one side of the support bar, and the linkage electric cylinder is fixedly connected to the side shell; a sealing sleeve block is installed on one side of the inner wall of the main shell and located below the main beam combining mirror, and a multi-point detection component is arranged inside the sealing sleeve block, and the multi-point detection component includes a collection camera fixedly arranged inside the sealing sleeve block; a wireless controller is fixedly connected to the outer wall of the main shell and located above the sealing sleeve block, and a micro-rotating motor is arranged on one side of the sealing sleeve block, the outer wall of the micro-rotating motor is fixedly connected to the sealing sleeve block, a connecting strip is fixedly installed on the outer wall of the micro-rotating motor, and a moving electric cylinder is fixedly connected to one side of the connecting strip.

2. The spectral beam combining device of a blue light composite laser as claimed in claim 1, characterized in that: The sleeve strip is slidably connected to the sliding frame, and the cross-section of the sleeve strip is L-shaped. The outer wall of the sleeve strip and the inner wall of the sliding frame are both smooth surfaces.

3. The spectral beam combining device of a blue light composite laser as claimed in claim 2, characterized in that: The other side of the switching block is fixedly connected with a secondary sealing strip, and one side of the secondary sealing strip is fixedly installed with a secondary beam combining mirror.

4. The spectral beam combining device of a blue light composite laser as claimed in claim 3, characterized in that: A micro motor is fixedly installed at the bottom end of the concave strip, and a linkage block is fixedly connected to the outer wall of the output end of the micro motor, a main sealing block is fixedly connected to one side of the linkage block, and the main sealing block is slidably connected to the main shell, and a main focusing mirror is fixedly installed on one side of the main sealing block; The other side of the linkage block is fixedly connected with a secondary sealing block, and one side of the secondary sealing block is fixedly installed with a secondary focusing mirror.

5. The spectral beam combining device of a blue light composite laser as claimed in claim 4, characterized in that: The main focusing mirror is slidably connected to the main shell, and the secondary sealing block and the main sealing block are symmetrically arranged with respect to the linkage block.

6. The spectral beam combining device of a blue light composite laser as claimed in claim 5, characterized in that: The secondary sealing plate and the primary sealing plate are symmetrically arranged with respect to the displacement block, and the outer walls of the primary reflector and the secondary reflector are both smooth surfaces.

7. The spectral beam combining device of a blue light composite laser as claimed in claim 6, characterized in that: A support frame is provided on the upper surface of the movable electric cylinder, and the main shell and the movable electric cylinder are fixedly connected to the support frame.

8. The spectral beam combining device of a blue light composite laser as claimed in claim 7, characterized in that: The outer wall of the sealing sleeve block and the interior of the main shell are both smooth surfaces, and a plurality of fill lights are fixedly connected to the upper surface of the acquisition camera.

9. A method for combining the spectrum of a blue light composite laser, using the spectral beam combining device of the blue light composite laser according to claim 8, characterized in that: The method comprises the following steps: Step 1: During composite laser processing, turn on the red laser emitter and the blue laser emitter, the red light is reflected to the main beam combiner for beam combining, and then focused and cut on the workpiece through the main focusing mirror; Step 2: During multi-point detection, the mobile electric cylinder pushes the connecting bar to the left, and the acquisition camera enters the position below the main beam combiner to check whether the main beam combiner, main focusing mirror, and main reflector have deformation or cracks; Step 3: When the beam dual mirrors are switched synchronously, the reduction motor drives the screw to rotate forward, the main beam combining mirror moves rightward from the inside of the main shell, the auxiliary beam combining mirror is swapped with the main beam combining mirror, and the auxiliary focusing mirror is swapped with the main focusing mirror; Step 4: When the beam reflector is tilted and switched, the linkage electric cylinder tilts and pushes up the support bar, the main reflector can be tilted and moved out from the inside of the side shell, and the auxiliary reflector can be swapped with the main reflector.

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